rb2011 - poor performance with uk bt infinity

RouterOS Beginner Basics
21

I too have the same issue with a 951G 2HnD. Trying to connect to a VDSL modem (ECI variety) results in 10Mb only.

22

I had the same problems with another provider with PPPoE. The fix for me was in the PPP profile ensuring the Change TCP MSS was set to yes as the MTU had to be changed dynamically with a value given from the PPP remote end.

Maybe that will help?

23

I have a customer who has just had an ECI Modem installed, I have used a RouterBoard 951G-2HnD and eth1 is only running 10mb, trying to force 100mb it just connects then disconnects.
but another customer with a Huawei and a RouterBoard 951G-2HnD works just fine and runs at 100mb auto.

Any Ideas?

Paul

24

its a known issue. Three options

  1. wait for Mikrotik fix
  2. put a switch in between the two devices
  3. swap out ECI for Huawei.

I went with 3. Luckily a friend had an HG612 going spare.

25

I’ve seen auto neg fail on the gig ports of the 2011 for both the ECI and the Huawei so your option 3 is a tad hit n miss

26

Have just encountered this same problem (on a RB2011).

Have Mikrotik found a solution yet?
My new 74Meg FTTC service is currently running at 9Meg :frowning:

27

Any further update on this? Same issue on v6.2 on 951G-2HnD. Can anyone confirm placing a switch between the modem and RB temporarily fixes the issue?

28

I’ve tried v6.2 on my 951G and the problem appears to be resolved. What firmware level are you running?

29

6.2! Thats strange. Definitely still auto negotiating at 10Mb

30

No the firmware which is under System > Routerboard I think. I’m running 3.08.

31

Oh no false alarm, my switch was still inline.

32

Oh well, never mind

33

Could anyone tell me what PPPoE settings they have used as im trying to connect a mikrotik upto one of the BT VDSL modems but it never seems to authenticate almost like i should have put something in the service name etc

any help greatly appreciated
Manners

34

Have you input the required username and password?

35

Just wire the patch cable between the router and the modem with 4 wires (1,2,3 and 6). This will force the Mikrotik to auto-negociate at 100 Mbit.

36

has this problem been fixed yet? if mikrotik need a ECI Modem I have one here they can have.

Paul

37

This seems loosely related to this:
http://forum.mikrotik.com/t/sfp-issue-with-rb2011uias-rm-and-lacp-q/74853/1

38

I’m still seeing this on a RB2011IL-IN latest firmware (6.20) Seems routerboard fault, Will happily auto negotiate at 100mbit to my laptop.

39

Yes the hardware is at fault. This blog post explains it somewhat http://blog.linitx.com/mikrotik-fttc-eci-modems/

40

Was that fixed in the end?

Or ECI still gives problems for default Eth1 port on RB2011 devices?

sebus